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Fractal structure with a typical scale

Author

Listed:
  • Anazawa, Masahiro
  • Ishikawa, Atushi
  • Suzuki, Tadao
  • Tomoyose, Masashi

Abstract

In order to understand the characteristics common to distributions which have both fractal and non-fractal scale regions in a unified framework, we introduce the concept of a typical scale. We employ a model of 2d gravity modified by the R2 term as a tool to understand such distributions through the typical scale. This model is obtained by adding an interaction term with a typical scale to a scale invariant system. A distribution derived in the model provides power law one in the large scale region, but Weibull-like one in the small scale region. As examples of distributions which have both fractal and non-fractal regions, we take those of personal income and citation number of scientific papers. We show that these distributions are fitted fairly well by the distribution curves derived analytically in the R2 2d gravity model. As a result, we consider that the typical scale is a useful concept to understand various distributions observed in the real world in a unified way. We also point out that the R2 2d gravity model provides us with an effective tool to read the typical scales of various distributions in a systematic way.

Suggested Citation

  • Anazawa, Masahiro & Ishikawa, Atushi & Suzuki, Tadao & Tomoyose, Masashi, 2004. "Fractal structure with a typical scale," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 335(3), pages 616-628.
    • Handle: RePEc:eee:phsmap:v:335:y:2004:i:3:p:616-628
    DOI: 10.1016/j.physa.2003.12.006
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